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the new passive fire protection system

Valsir Collarwings is the new range of fire stop collars produced in compliance with the most recent standards and suitable for installation on plastic waste and drainage pipes. The Collarwings fire stop collars are made of steel and painted with polyester powder fitted with special intumescent inserts which, in the event of fire, expand and squeeze the pipe thus preventing the passage of flames, combustion gas and vapours and acting as a thermal insulation.

The collars can be installed either in a vertical wall or in the slab and they have a fire resistance class of EI240 in compliance with European Standard EN 1366-3.

Reliable Protection

The resistance and insulation of at least 240 minutes (4 hours) are guaranteed by the presence of special metal elements (reinforcing flaps) that increase the effectiveness of the two types of intumescence which, when combined, provide high expansion reactivity and high mechanical resistance over time.

Quick installation

Simplified mounting

Tested in compliance with EN 1366-3

Tested in compliance with EN 1366-3 on a standard wall in cellular concrete (reports CSI1917FR and CSI1862FR) and in reinforced concrete slab (report CSI1915FR).

Operating principle

In the event of fire the intumescent material
contained in the collar expands forming a “plug” thus
cutting off the fire and preventing gas and fumes
from spreading.

The special closure elements (reinforcing flaps)
increase reactivity and efficiency of the system by
completely squeezing the plastic pipe during the
melting phase.

Phase 1

During the first phase of the fire the plastic pipe
melts and the intumescent inserts expand.
The first is more reactive and acts immediately,
the second, which expands at a higher temperature
results in a high performance over time.

Phase 2

During the next few minutes the intumescent
elements of the collar occupy the entire section
left free by the plastic pipe that is in the process of
melting. The intumescent inserts expand and act on
the closure elements (reinforcing flaps) bringing them
to the position of exposure to the fire.

Phase 3

The intumescent inserts shut off the hole entirely in
a sufficient period of time so that the fire does not
spread to other areas.
During this phase the closure elements (reinforcing
flaps) are completely oriented and, as well as acting
as a “container” for the expanded intumescent
material, create another metal barrier against the fire.

Test results

The European standards EN 1363-1 and EN 1366-3
defines the standard test criteria applicable to fire
collars and introduce requirements that must be
met in order to ensure the proper functioning of the
passive safety system.

Support

Valsir provides complete support both during the planning phase and on site, thanks to a first-class technical office made up of a team of highly experienced engineers, capable of dealing with the most complex system requirements.

Silvestro Software

Silvestro is a software program created by Valsir to help planners in the creation of water supply and waste systems. Thanks to its ease of use it allows the Valsir products to be easily adopted in any project.